Eukaryotic nuclei arose through ____.

A) cytoplasmic diffusion
B) formation of a new internal membrane by the eukaryotic cell
C) an endosymbiotic relationship with a bacteria
D) infoldings of the cell's plasma membrane
E) the uptake of the cell's genome by a membrane organelle already present in the cell

Eukaryotic Nuclei

The membrane-bound organelle found in eukaryotic cells that contains most of the cell's genetic material.

Endosymbiotic Relationship

A mutual relationship in which one organism lives inside another, both benefiting from the association.

Internal Membrane

A membrane within a cell that divides the cell into different compartments or organelles.